
Surf Forecasts:
Kennebunk Beach surf forecast from 13 Sep 2026:
- Most powerful swell: Thursday 17 Sep, 11AM (local time) - 4ft (1.2m), 7s period, E swell with 147 kJ wave energy.
Best Forecast Surf Conditions for Kennebunk Beach this week:
The most powerful waves expected at Kennebunk Beach in the next 16 days are 1.2m 7s and forecast to arrive on Thursday (Sep 17) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Saturday (Sep 19) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Thu 17th Sep) | 4ft (1.2m) 7s |
Table - best surf conditions forecast for Kennebunk Beach over the next 16 days.
The Lowdown
Alright, Rusty here. Let's take a look at what's on offer for our stretch of coast.
Honestly, it’s a bit of a slow start. We’re looking at a long stretch of small, weak, and generally poor conditions right through the middle of the month. The first sign of anything worth a paddle doesn't show up until Sunday the 20th, so you’re looking at a gap of about a week of flat, messy conditions before we get a sniff of something.
That first little window on the morning of Sunday the 20th sees a pulse of small swell at Kennebunk Beach, around 4ft from the NE, but the period is a short 6 seconds so it’ll be weak and crumbly. The combined energy is moderate at 197, but the call is only “surfable waves” – not much to write home about. The wind is cross-offshore and clean, so it'll look tidy enough, but it's just not packing any punch.
The next real highlight, and the standout of the entire run, comes mid-week. On Wednesday the 23rd, we’ve got a better looking swell building. Morning sees 5ft from the ESE with a period of 9 seconds, and the combined energy is a solid 295 – that’s moderate energy with some push behind it. The wind is light and cross-off, keeping the surface clean. By the afternoon, the wind swings offshore (NE at 15 mph) and the swell holds at 5ft, with energy up to 308. This is the best it gets for the whole period: clean, offshore conditions with a decent, workable groundswell. It’s not huge, but it’ll be fun and well-shaped for the beach.
Following that, Thursday the 24th morning pushes up to 5ft from the ESE with a 10-second period, and the energy jumps to 528 – that’s strong energy. The wind is cross-off and clean. This is getting into the steeper territory, and could be a bit much for beginners, but for the experienced crew, the afternoon looks even better with a 5ft swell, a longer 11-second period, and gentle offshore wind. That afternoon session on Thursday the 24th is the only slot in the whole 16 days that rates as “expect good surf conditions.” The energy is 476, the waves will have some grunt, and with the offshore breeze it’ll be glassy. That’s the session to circle on your calendar.
The rest of the run fades back into small, weak stuff. Friday the 25th morning is glassy with 4ft and a nice 11-second period, so it’ll look clean, but the energy is dropping to 359. After that, it’s back to small, onshore junk for the weekend.
Bottom line: the first week is a write-off. Don’t bother. The window from Wednesday the 23rd through to Friday the 25th is your best bet, with Thursday afternoon being the absolute standout. It’s not a massive swell, but the combination of clean wind, decent size, and proper energy makes it worth getting wet.
Rusty.
Short Range ForecastModerate rain (total 14mm), heaviest on Sun morning. Warm (max 21°C on Mon afternoon, min 11°C on Tue morning). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Fri morning. Warm (max 20°C on Wed afternoon, min 13°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||
Wave Height (m) Direction Period (s) | S 5 | SE 10 | SE 10 | SE 9 | SE 7 | SE 7 | SE 7 | SE 7 | E 5 | ESE 6 | E 7 | ESE 8 | ESE 8 | E 7 | E 7 | E 7 | ESE 6 | SE 12 | ESE 12 |
Wave Graph | |||||||||||||||||||
35 | 34 | 32 | 29 | 75 | 60 | 32 | 12 | 14 | 19 | 25 | 44 | 58 | 147 | 89 | 43 | 16 | 22 | 13 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | glassy | on | cross-off | cross-off | cross-off | cross-off | cross | on | on | cross-on | cross-off | cross-off | cross-off | on | cross-on | cross-off | off |
High Tide | 1:05AM2.98m | 1:24PM3.02m | 1:50AM2.85m | 2:05PM2.95m | 2:35AM2.69m | 2:47PM2.86m | 3:22AM2.54m | 3:31PM2.75m | 4:11AM2.39m | 4:19PM2.64m | 5:06AM2.28m | 5:14PM2.55m | |||||||
Low Tide | 7:10AM-0.05m | 7:35PM-0.06m | 7:51AM0.08m | 8:19PM0.03m | 8:32AM0.24m | 9:05PM0.14m | 9:16AM0.40m | 9:54PM0.27m | 10:03AM0.53m | 10:47PM0.38m | 10:56AM0.64m | 11:46PM0.48m | |||||||
— | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | |
6:58 | — | 6:55 | — | — | 6:53 | — | — | 6:52 | — | — | 6:51 | — | — | 6:49 | — | — | 6:46 | — | |
mm | — | 7 | 6 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 2 |
Temp °C | 17 | 16 | 17 | 18 | 20 | 21 | 17 | 13 | 14 | 14 | 15 | 20 | 20 | 17 | 16 | 17 | 16 | 19 | 17 |
Feels °C | 15 | 15 | 17 | 19 | 16 | 17 | 13 | 10 | 11 | 12 | 13 | 18 | 19 | 14 | 15 | 14 | 14 | 16 | 13 |
Swell 1 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | SSE 4 | SE 7 | SE 7 | SE 7 | SE 7 | E 5 | ESE 6 | E 7 | ESE 8 | ESE 8 | ESE 12 | E 7 | E 7 | ESE 6 | ESE 6 | ESE 12 |
15 | 34 | 32 | 18 | 75 | 60 | 32 | 12 | 14 | 19 | 25 | 44 | 58 | 15 | 89 | 43 | 16 | 21 | 13 | |
Swell 2 Height (m) Direction Period (s) | S 8 | — | — | SE 9 | — | N 3 | S 15 | ESE 9 | SSE 7 | ESE 9 | SE 13 | SE 13 | SSE 4 | SE 13 | ESE 12 | SE 12 | S 4 | SE 12 | ESE 9 |
1 | — | — | 29 | — | 1 | 4 | 8 | 4 | 8 | 7 | 7 | 5 | 6 | 15 | 6 | 9 | 22 | 7 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | E 5 | E 15 | S 15 | ESE 9 | SE 14 | E 13 | E 13 | SE 13 | — | SE 12 | SE 9 | ESE 12 | S 4 | ESE 8 |
— | — | — | — | — | 2 | 4 | 4 | 8 | 8 | 4 | 4 | 7 | — | 6 | 3 | 14 | 1 | 7 | |
Wind waves Height (m) Direction Period (s) | S 5 | SSE 4 | SSE 4 | SSW 2 | NW 2 | — | NNE 4 | ENE 4 | — | — | SSW 2 | S 3 | — | E 7 | — | S 4 | NNE 2 | — | E 4 |
35 | 19 | 23 | 1 | 1 | — | 25 | 11 | — | — | 1 | 5 | — | 147 | — | 12 | 1 | — | 17 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 11 | 350 | 11 | 438 | 54 | 11 | 462 | 462 | 1342 | 128 | 62 | 62 | 54 | 470 | 583 | 128 | 442 | 324 | 598 |
Best forecast wave conditions in Maine | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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Information about the Kennebunk Beach Surf forecast
The above surf forecast table for Kennebunk Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kennebunk Beach can be found by selecting the local surf guide option on the grey menu. Our Kennebunk Beach surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Kennebunk Beach) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Kennebunk Beach may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Kennebunk Beach is 17 km (11 miles) from Biddeford. If you plan a vacation in Maine, look for hotels and other accommodation in Biddeford. Biddeford has rooms for a wide range of budgets as well as car hire and transport links.










